Hello I have a newer P500-2 that Rockford wont release the schematic to yet.

One channel has distortion, any idea where to look? Maybe the A/B driver card?

I posted a pic of the board, it is number 1325-52756-02 2007 model.

The wierd thing is the output on the scope with a 100Hz sine wave scope set at 2ms 20v/d the output looks clean.

When you play a music cd the amp plays ok for a little bit then as the volume is increased the amp cuts out with the red and yellow lights clipping on and off. When the volume is decreased then the channel gets distorted.

As a side note, these daughercards appear to be used in a *bunch* of the newer style amps, I am pretty sure i've seen this same part number in the p300-1, p300-2,p400-2,p400-4 and p500-2, and I'm pretty sure even the power series t600-2/4 amps too...

I never went any further on the amp, the customer is in no hurry and I have so many to repair I put it on hold. I will likely pick it up in the next few days, I am trying to get this tiresome punch 800.2 fixed its really wearing me thin!!